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Finding the Fourth Proportional to 3,611.91, 4,984.53 and 2,040.00

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Solution

The fourth proportional to 3,611.91, 4,984.53 and 2,040.00 is: 2,815.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.91 : 4,984.53 = 2,040.00 : x
  2. Step 2: Convert to fraction form
    3,611.91/4,984.53 = 2,040.00/x
  3. Step 3: Cross multiply
    3,611.91x = 4,984.53 × 2,040.00
  4. Step 4: Simplify right side
    3,611.91x = 10,168,454.37
  5. Step 5: Solve for x
    x = 10,168,454.37/3,611.91
  6. Step 6: Final answer
    x = 2,815.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.